Cassette filter



FIG. 1 is a top rear perspective view of the Cassette Filter according to the present invention;

FIG. 2 is a front bottom perspective view of the Cassette Filter according to the present invention;

FIG. 3 is a bottom elevational view of the Cassette Filter according to the present invention;

FIG. 4 is a top elevational view of the Cassette Filter according to the present invention;

FIG. 5 is a front elevational view of the Cassette Filter according to the present invention;

FIG. 6 is a rear elevational view of the Cassette Filter according to the present invention;

FIG. 7 is a left side elevational view of the Cassette Filter according to the present invention; and,

FIG. 8 is a right side elevational view of the Cassette Filter according to the present invention. 

We claim the ornamental design for a “Cassette Filter”, as shown and described. 